
Ching Chang
Examiner (ID: 5925, Phone: (571)272-4857 , Office: P/3748 )
| Most Active Art Unit | 3748 |
| Art Unit(s) | 3746, 3748 |
| Total Applications | 1871 |
| Issued Applications | 1700 |
| Pending Applications | 11 |
| Abandoned Applications | 170 |
Applications
| Application number | Title of the application | Filing Date | Status |
|---|---|---|---|
Array
(
[id] => 6603453
[patent_doc_number] => 20100224148
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2010-09-09
[patent_title] => 'HYDRAULIC UNIT FOR A CYLINDER HEAD OF AN INTERNAL COMBUSTION ENGINE WITH HYDRAULICALLY VARIABLE GAS-EXCHANGE VALVE TRAIN'
[patent_app_type] => utility
[patent_app_number] => 12/718090
[patent_app_country] => US
[patent_app_date] => 2010-03-05
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 13
[patent_figures_cnt] => 13
[patent_no_of_words] => 4331
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[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] => publications/A1/0224/20100224148.pdf
[firstpage_image] =>[orig_patent_app_number] => 12718090
[rel_patent_id] =>[rel_patent_doc_number] =>) 12/718090 | Hydraulic unit for a cylinder head of an internal combustion engine with hydraulically variable gas-exchange valve train | Mar 4, 2010 | Issued |
Array
(
[id] => 6485670
[patent_doc_number] => 20100199945
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2010-08-12
[patent_title] => 'Internal combustion engine valve drive train switching device'
[patent_app_type] => utility
[patent_app_number] => 12/660929
[patent_app_country] => US
[patent_app_date] => 2010-03-05
[patent_effective_date] => 0000-00-00
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[pdf_file] => publications/A1/0199/20100199945.pdf
[firstpage_image] =>[orig_patent_app_number] => 12660929
[rel_patent_id] =>[rel_patent_doc_number] =>) 12/660929 | Internal combustion engine valve drive train switching device | Mar 4, 2010 | Issued |
Array
(
[id] => 6081681
[patent_doc_number] => 20110214633
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2011-09-08
[patent_title] => 'DURATION EXTENDER VARIABLE VALVE ACTUATION'
[patent_app_type] => utility
[patent_app_number] => 12/717947
[patent_app_country] => US
[patent_app_date] => 2010-03-04
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 15
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[pdf_file] => publications/A1/0214/20110214633.pdf
[firstpage_image] =>[orig_patent_app_number] => 12717947
[rel_patent_id] =>[rel_patent_doc_number] =>) 12/717947 | DURATION EXTENDER VARIABLE VALVE ACTUATION | Mar 3, 2010 | Abandoned |
Array
(
[id] => 8894916
[patent_doc_number] => 08474427
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2013-07-02
[patent_title] => 'Tappet'
[patent_app_type] => utility
[patent_app_number] => 13/142370
[patent_app_country] => US
[patent_app_date] => 2010-03-04
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 2
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[patent_no_of_words] => 1610
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[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 13142370
[rel_patent_id] =>[rel_patent_doc_number] =>) 13/142370 | Tappet | Mar 3, 2010 | Issued |
Array
(
[id] => 6081691
[patent_doc_number] => 20110214635
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2011-09-08
[patent_title] => 'ENGINE INCLUDING VALVE LIFT MECHANISM WITH STRESS REDUCTION FEATURES'
[patent_app_type] => utility
[patent_app_number] => 12/716795
[patent_app_country] => US
[patent_app_date] => 2010-03-03
[patent_effective_date] => 0000-00-00
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[pdf_file] => publications/A1/0214/20110214635.pdf
[firstpage_image] =>[orig_patent_app_number] => 12716795
[rel_patent_id] =>[rel_patent_doc_number] =>) 12/716795 | Engine including valve lift mechanism with stress reduction features | Mar 2, 2010 | Issued |
Array
(
[id] => 8531643
[patent_doc_number] => 08307793
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2012-11-13
[patent_title] => 'Internal combustion engine with two intake valves per cylinder which are actuated hydraulically and have differentiated return springs'
[patent_app_type] => utility
[patent_app_number] => 12/711729
[patent_app_country] => US
[patent_app_date] => 2010-02-24
[patent_effective_date] => 0000-00-00
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[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12711729
[rel_patent_id] =>[rel_patent_doc_number] =>) 12/711729 | Internal combustion engine with two intake valves per cylinder which are actuated hydraulically and have differentiated return springs | Feb 23, 2010 | Issued |
Array
(
[id] => 6222771
[patent_doc_number] => 20100180848
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2010-07-22
[patent_title] => 'VALVE LASH ADJUSTMENT SYSTEM FOR A SPLIT-CYCLE ENGINE'
[patent_app_type] => utility
[patent_app_number] => 12/711546
[patent_app_country] => US
[patent_app_date] => 2010-02-24
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 15
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[pdf_file] => publications/A1/0180/20100180848.pdf
[firstpage_image] =>[orig_patent_app_number] => 12711546
[rel_patent_id] =>[rel_patent_doc_number] =>) 12/711546 | Valve lash adjustment system for a split-cycle engine | Feb 23, 2010 | Issued |
Array
(
[id] => 8326928
[patent_doc_number] => 08235015
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2012-08-07
[patent_title] => 'Internal combustion engine with variable valve gear'
[patent_app_type] => utility
[patent_app_number] => 12/710010
[patent_app_country] => US
[patent_app_date] => 2010-02-22
[patent_effective_date] => 0000-00-00
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[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12710010
[rel_patent_id] =>[rel_patent_doc_number] =>) 12/710010 | Internal combustion engine with variable valve gear | Feb 21, 2010 | Issued |
Array
(
[id] => 6470103
[patent_doc_number] => 20100212614
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2010-08-26
[patent_title] => 'INTERNAL COMBUSTION ENGINE WITH VARIABLE VALVE GEAR'
[patent_app_type] => utility
[patent_app_number] => 12/709959
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[firstpage_image] =>[orig_patent_app_number] => 12709959
[rel_patent_id] =>[rel_patent_doc_number] =>) 12/709959 | Internal combustion engine with variable valve gear | Feb 21, 2010 | Issued |
Array
(
[id] => 6470123
[patent_doc_number] => 20100212618
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2010-08-26
[patent_title] => 'INTERNAL COMBUSTION ENGINE WITH VARIABLE VALVE GEAR'
[patent_app_type] => utility
[patent_app_number] => 12/709938
[patent_app_country] => US
[patent_app_date] => 2010-02-22
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[rel_patent_id] =>[rel_patent_doc_number] =>) 12/709938 | Internal combustion engine with variable valve gear | Feb 21, 2010 | Issued |
Array
(
[id] => 6470118
[patent_doc_number] => 20100212617
[patent_country] => US
[patent_kind] => A1
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[patent_title] => 'INTERNAL COMBUSTION ENGINE WITH VARIABLE VALVE GEAR'
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[patent_app_number] => 12/709032
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[firstpage_image] =>[orig_patent_app_number] => 12709032
[rel_patent_id] =>[rel_patent_doc_number] =>) 12/709032 | Internal combustion engine with variable valve gear | Feb 18, 2010 | Issued |
Array
(
[id] => 8662450
[patent_doc_number] => 08375904
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[patent_kind] => B2
[patent_issue_date] => 2013-02-19
[patent_title] => 'Early intake valve closing and variable valve timing assembly and method'
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[patent_app_number] => 12/708276
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[rel_patent_id] =>[rel_patent_doc_number] =>) 12/708276 | Early intake valve closing and variable valve timing assembly and method | Feb 17, 2010 | Issued |
Array
(
[id] => 8526010
[patent_doc_number] => 08302573
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[patent_kind] => B2
[patent_issue_date] => 2012-11-06
[patent_title] => 'Hydraulic camshaft adjuster having an axial screw plug'
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[rel_patent_id] =>[rel_patent_doc_number] =>) 12/706434 | Hydraulic camshaft adjuster having an axial screw plug | Feb 15, 2010 | Issued |
Array
(
[id] => 8024905
[patent_doc_number] => 08141529
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[patent_title] => 'Valve timing control apparatus'
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[rel_patent_id] =>[rel_patent_doc_number] =>) 13/141635 | Valve timing control apparatus | Feb 15, 2010 | Issued |
Array
(
[id] => 8444557
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Array
(
[id] => 8210654
[patent_doc_number] => 08191524
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[patent_title] => 'Valve-train assembly of an internal combustion engine'
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[rel_patent_id] =>[rel_patent_doc_number] =>) 12/704759 | Valve-train assembly of an internal combustion engine | Feb 11, 2010 | Issued |
Array
(
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Array
(
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Array
(
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Array
(
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[rel_patent_id] =>[rel_patent_doc_number] =>) 13/139813 | Valve drive of an internal combustion engine | Jan 31, 2010 | Issued |